Bolt-guard



(No Model.)

W. NEWBOLD;

BOLT GUARD.

Patented Jan.- 28, 1883.

. ,L' v ATTORNEYS PEKERS. Phcwumn n h Washington. 0. c.

UNITED STATES PATENT OFFICE.

WILLIAM NEWBOLD, OF EAsT cLEvELAND, oHIo.

- l BOLT-GUARD.

SPE'JIFICATION forming part of Letters Patent No. 270,972, dated January23,1883.

' Application filed October 30, 1882. (No model.)

To all whom it may concern Be itknown that I, WILLIAM NEWBoLD, of EastCleveland, in the countyofOuyahoga and State of Ohio, have inventedcertain new and useful Improvements in Bolt-Guards; and I do herebydeclare the following to be a full, clear, and exact description of theinvention, such as will enable others-skilled in the art to which itpertains to make and use the same.

My invention relates to an improved boltguard and it consists ofanew'device for making a door-bolt more secure as against burglars.

In the drawings, Figures 1 and 2 are plan views, representing differentmodes of making the device. Fig. 3 is an isometric view of the deviceconstructed according to my invention.

A represents a plate, of any suitable metal, with serrated edges, asshown at l).

The dotted lines a show where the plate is to be bent in forming it intothe box shape that it assumes when it is completed, as shown in Fig. 3.

B represents the casing of the bolt, and may be attached directly to theplate A, as shown in Fig. 1; or the case B may be first attached to theplate 0, as in the ordinary way of making door-bolts, and then attachedto the plate A, as shown in Figs. 2 and 3. t E represents the bolt, and.A, Fig. 3, the guard when completed and combined with the bolt.

The operation of my new device is as follows: The usual means employedby burglars to. unfasten a door secured by a bolt isto bore a smallholethrough the door and insert a bent rod or wire, with which theyengage the bolt and draw it back out of its fastening. With my inventionthe bolt is protected by the box-shaped guard surrounding it,'asheretofore described, making it difficult to introduce through a hole inthe door a rod or wire that has been first bent in such shape that itwill engage the bolt, and the serrated edges of the guard render itextremely difficult to so operate a rod or wire as to withdraw theboltt'rom its fastening, even if the rod or wire could be broughtincontact with the bolt. Hence it will be seen that the application of myinvention makes a valuable safeguard againstall burglarious attempts ona door fastened with a bolt secured as aforesaid.

\Vhat I claim is- 1. Adoor-bolt havingaguard-casiiigsecured thereto,said casing being formed with side and end walls that project outwardlyfrom the bolt, substantially as set forth.

2. A door-bolt having agnard-casing secured thereto, said casing beingformed with side walls having serrated edges, substantially as setforth.

In testimony whereof I sign this specification, in the presence of twowitnesses, this 21st day of October, 1882.

WILL AM NEWBOLD.

Witnesses:

JNo. ORoWELL, Jr., S. G. NOTTINGHAM.

